I believe you are violently in agreement ;) You are doing exactly that, assuming nothing. The number of times I've seem "meh, x can't be null here, just do not

I believe you are violently in agreement ;) You are doing exactly that, assuming nothing. The number of times I've seem "meh, x can't be null here, just do nothing about it" (instead of some way of asserting that assumption, such as you provide) is staggering.